Reland "update_engine: Deprecate major version 1"
This reverts commit fac20229289cf4d4373fffe83037d44b780eabd0.
Reason for revert: <Since the stepping stone on M72 we can revert this now>
Original change's description:
> Revert "update_engine: Deprecate major version 1"
>
> This partially reverts commit 55c75417e22d5026971276997924a345d9973bbc.
>
> It turns out that we forgot a scenario when we deprecated major version
> 1. We use update_engine in lab tests (specifically
> autoupdate_EndToEndTests on stable channel) to update a DUT to an
> old (very old) versions using actual update payloads so we can test that
> they can get updated to newer versions. However, deprecating major
> version 1 in the update_engine caused trouble because we no longer can
> update from a newer version to a version before M72 (to prepare the
> device for update test). We need to put this feature back until we find
> a better solution for it.
>
> On this CL, we only support major version 1 in the client and only for
> test (non-official) images. We don't even bother adding paygen support
> for it.
>
> This CL should be reverted once we figured out what to do with
> provisioning the autoupdate end to end tests.
>
> BUG=chromium:1043428
> TEST=FEATURES=test emerge-reef update_engine
> TEST=cros deployed it, then cros flash using an m71 payload, it succeeded.
>
> Change-Id: I1fecbe3ae845b2e419f0999adc53e4732b1f7696
> Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2013884
> Reviewed-by: Tianjie Xu <xunchang@google.com>
> Reviewed-by: Sen Jiang <senj@chromium.org>
> Tested-by: Amin Hassani <ahassani@chromium.org>
> Commit-Queue: Amin Hassani <ahassani@chromium.org>
TBR=dhaddock@chromium.org,senj@chromium.org,ahassani@chromium.org,xunchang@google.com,kimjae@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: chromium:1043428
Change-Id: I011537d4c982fa8f8d6548adddd14d966106ba44
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2096032
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Commit-Queue: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
diff --git a/payload_consumer/payload_constants.cc b/payload_consumer/payload_constants.cc
index 4015a0a..908a893 100644
--- a/payload_consumer/payload_constants.cc
+++ b/payload_consumer/payload_constants.cc
@@ -20,7 +20,7 @@
namespace chromeos_update_engine {
-const uint64_t kChromeOSMajorPayloadVersion = 1;
+// const uint64_t kChromeOSMajorPayloadVersion = 1; DEPRECATED
const uint64_t kBrilloMajorPayloadVersion = 2;
const uint64_t kMinSupportedMajorPayloadVersion = kBrilloMajorPayloadVersion;